Mounting for artificial teeth.



B. J. GREENFIELD.

MOUNTING r03 ARTIFIGIAL TEETH.

V APPLICATION FILED PEB.17, 1909.

Patented Dec. 14,

WITNESSES IN VEN TOR.

ga (0L I ATTORNEYS] (I Greer UNITED STATES EDWIN J. GREENFIELD, OFWICHI'I'A, KANSAS.

mounrm'c roa ARTIFICIAL TEETH.

Specification of Betters Patent.

Patented Dec. 14, 1909.

Application filed February 17, 1909. SerialNo. 478,360.

To all whom it concern:

Be it known that I, EDWIN J. GREENFIELD,

citizen of the United States, residing at.

fication,

Wichita, in the county of Sedgwick and State of Kansas, have inventedcertain new and useful Improvements in Mountings for Artificial Teeth,of which the following is a.

specification.

The present invention relates in general to dentistry, and moreparticularly to a novel means for mounting artificial teeth.

The object of the invention is the provision of a peculiarly constructedframe which is adapted to serve as a bearing for the teeth, and which isdesigned to be inserted into a cavity drilled in the jawbone so as to beheld firmly in position when the bone closes in upon the same. 1

For a full understanding of the invention and the merits thereof andalso to acquire a knowledge of the detailsof construction and the meansfor effecting the result, reference tobe had to the followingdescription and is accompanying drawings, in which:

Figure 1 1s a side view of a human face,

' portions of the cheek and jaw bone being removed to show'the manner inwhich the invention is applied; Fig. 2 is a detail perspective view ofthe bearing frame and artificial tooth, the said members beingseparated; Fig. 3 is a side elevation .of the hearing frame andartificial tooth, the base of the tooth being broken away to show themanner 1n which it is a perspective view illustrating another embodimentof the invention; and Fig. 5-is a similar view illustrating stillanother modihereinafter specifically referred to. orresponding and likeparts are referred to in the followin description and indicated in allthe views 0 the drawings by the same reference characters.

\ Specifically describing the'present embodiments of the invention andreferring now particularly to Figs. 1, 2 and 3, the numeral 1 designatesa disk which may be of any desired shape and which constitutes the baseor bottom of the hearing frame. Projecting upwardly from this disk arearms 2 which are connected at one or more intermediate points bytransverse bracing or ribbing 3.

In the embodiment of the invention illustrated in Figs. 1, 2 and 3 thearms 2 extend substantially parallel to each other. I

4 desi ates a head which may be secured in any is applied to the'frame;Fig. 4-

es'ired way to thelrupper end of the arms 2, and to this head the tooth5 is'secured by solder or in any other desired way.

In the practical use of the invention, the frame, which is made up ofthe base, arms, and head, is designed'to be inserted'into a cavityof'the correct size and shape drilled in the jaw bone, the disk 1resting upon the bottom of the cavity so as to obtain a large bearinsurface, while the arms 2 project upwardly with their extremitiesextending above the jaw bone so as to receive the head 4 and artificialtooth-5. In the course of time, the bone will close in around andthrough the frame, and the latter will thereby be held securely inposition so as to form verse ribbing 3 may be soldered or otherwiseconnected to the arms 2 and serves to resist the pressure of the boneand to prevent the arms from moving sidewise, and also cooperates withthe disk to form a firm bearin Obviously, in those cases where a numberof teeth are being removed, two or more of these bearin frames may beinstalled at suitable positions, and the teeth bridged from one to theother, in the manner well known in the art of dentistry.

In that embodiment of the invention illustrated in Fig. 4, the arms 2*-of the frame diverge in an upward direction from the base 1* and areconnected by a plural number of ribbings or cross arms 3, and in thisembodiment of the invention the head is mounted to rotate about acentral axis, as indicated at 4. Furthermore the said head is providedwith a detachable cap piece 6 secured to the head as by the tongue andundercut groove connection 7 shown, so that the tooth may be firstsoldered to the cap and the cap piece attached readily to the head ofthe frame, being turned to the desired position, being afterwardcemented so that it is held firmly in place. Or, as illustrated in Fi 5,the head there designated 4 is held ri id y on the upper ends of thearms 2* instead of being rotatably mounted thereon, the head 4." beingprovided with a detachable cap 6". i

' In the practical use of those embodiments .The object in having amovable head is of the invention in which caps are employed, the toothmay be soldered onto the cap and a solid bearing for the tooth. Thetransthat it is almost impossible in bridge work to insert the toothframes in such a manner that the bridge will on exactly right, and byhaving a movabde head it can be. ad: justed. Y

It is to be understood that my improved. frames may be made of gold,silver, platinum, porcelain, or any noncorrosive material.

Having thus described the invention, what is claimed as new is:

1. A bearing frame for an artificial tooth, comprising a disk, aplurality of arms secured to said disk and projecting upwardly therefromand a head mounted on said arms for supporting a tooth.

2. A device as specified comprising a disk, a plurality of arms carriedby said disk, cross braces positioned between said arms and a cap piecefor holding a tooth detachably secured upon the outer extremities ofsaid arms.

3. A device as specified comprising a base, 7

in presence oftwo witnesses.

arms upwardly extended from sald base,

ribs disposed across said arms at intermediate points thereof, a diskmounted'upon the opposite ends of said arms, a head rotatably disposedon said disk, said head having a groove formed across the upper face ofthe same, av cap piece carried by a tooth, and a tongue formed on saidcap piece for engagement in the groove in said head.

4. A device as specified comprising a base, I

arms upwardly extended from saidbase, a head rigidly carried-upon theupper ends' of said arms, groove formed across the face thereof, a capengaged on said head and-secured to a toothand a .tongue formed on saidcap for interlocking engagement with the groove injsa'id 40 head. Intestimony whereof I afix my signature EDWIN J. GREENFIELD.

Witnesses: THORNTON W. SARGENT,

EDNA CARNEFIX.

said head having .an undercut

